Calculating device



RQ A. NOBLE cALcULAT'ING DEVICE Angl-'1,

Filed .my 17, 1944 4 sheets-sheet 2`- 7,1945 i R.A.YNoB| E 2,381,836

CALCULATING DEVICE I Filed July 17, 1944 4 Sheets-Sheet 5 e" :1: a, b 0 l o I D l a a l Ba l 12a m;

\ laf a o 4o 2 f a I E iT INVENTOR AUS! 7, 1945 R. A. VvNOBLE 2,381Q836 CALCULATING DEVIQE Filed July -1' 7, 1944 4 Sheets- Sheet 4y FLE. 5.4 y,

I IN V EN TOR.

/ass A. /Vo/e f Patented Aug. 7, 1.945

taining and determining-the adjustable positions and` movements' to be given'to an adjustable mounting for a bushing orbearing or the like, in1-order-toaccurately locate the hole center.' of

l5 clanes.

(ci. 331-1) f ""@Thisiinvention relates toa' device for ascere theibu'sliing4 orfbearingi The device'of thepres'- ent invention'. may-:bef considered to be a calculatingdevice.-...: i '-iw- A Theresishownl in my application, Serial.' No; 507,502,r led. October-25,4943, anadjustable Y mounting .with` which lthe, present calculating device is'to'I be employed.' AThe device shown inthe application recites brieiiy .the following structure which ll'iad best ,be 1disc1osed-herein in order7 ythat the calculating device and its use may be undering. the mechanical structure which is to be'ad. f

Referring first to Figs. 6, '7, -and- 8: In Fig. 6 -a support is lshown `at I andy rotatably ymounted in the support isan outer adjustable member 2,- the center/of rotation of which is atv3. A second rotatably vadjustable member, shown at -4, is eC- sto'od; rst; therefi's'af suitable.-supportinglstrucf 'ture-pian adjusting. member' is rotatably .ad-justter, and to this endthe second member has an eccentric opening 6 therein.y

Theeccentricity ofgthe opening Gis preferably equal'lto the leccentricity oftheymember 4. Ac-

' the member 4 within the member 2, the center relativeto therstradjus'tablemember.and thev eccentricity Aoi? theopening in the second adjustable vmember. are'fpreferably equal.'` vBysuitablerotatable adjustments offthe'adjustable members, the centen of the `'opening lcan be accurately posi'-` tioned in a'multi'plicityl oflocations but .where the' actual machineryl is not large, as isusuallytthe case; ythe. ldifficultyY is that 1 of. ascertainingv the ex;

tentlandamountofadjustments'which areato be 5;

made.v HAccordingly, the object of the .present invention; is, primar-ily, to y Provides "a Icalculating y f vdevice which willquickly and easilyshow the ex-` tent and direction of rotatabley adjustments Lto be given toboth the rotatably adjustable members 1 tofbring-:the-centerfofl'the opening-at a known accurate location., @ther objects willibe better understood'byA consideration of. thegfollowin'gde'- taileddescription.. l 'f 1' l l The-.accompanying drawings-shown device-for showingthe. structural-j elements.vr A

- Figv. 3 is a viewl off'fthedevce in a position into which=the ldevice is manipulated for ascertaining cordingly, .the .parts may :be adjustedas shown in Fig. 6,50; that the centerl of .the opening E coin cides withl the center#offltheqmember 42-. This may be considereda zero position. By rotating of the opening may be caused to traverse a complete circle along ther arcrepresented at- 1. This rotation is about ttheicenter' 5. r By-rotating the outery member-.2,the center of the opening 3 may move through a completecircle onfa radius de pending upon the-distance of the center `of the openingl from'the center 3. Y- Suppose, for example, that it is desired that thecenter of the opening y beladjusted to the-point 8u; rst, the innermember 4 is rotated-.toimove the openingcenter. along the arc'l vto a-.point-S. point is on a radius from thev center.; 3; equal to; the radius of the point. The ,mernber 4 is now locked in position,

may, by Vmanipulation ofr they member 4.be adjustably positionedA from'the center 3 -to ay point on vany radius equal to twicei-.he eccentricity; i.:e. twice thefdistancej between thementers 3 and 5; that having thusbeen adjusted to the proper radius, the center may'be adjusted throughout 360"` to locate the. center'. at any desired point in afcertain-adjust'melnt ofthe mechanical structure Figa-4 is ianvensmalled plan view of` thezadjustingpieceorsegment.

Fig. 5 is a plan view of a modified form. s Fig. 6 is a rather. diagrammatic -viewillustratcentricity, or in other words; the distancebetween the centers r3- .and -5 may beabout .002 of aninch,

although this. may be varied. A The cornputingI device of the present inventionis to ybe employed f to easily andquickly ascertain the anglecffmove"4 ment given `to the `two,rotatagbly adjustable members to; locate .the., center of the openingat any desired point. Fig. I showstwo NITEDfSTATE'S PATENT oF-)FICE g `I b 12,381,836 'f 'y ,f CALcULATmG DEVICE RossA.i\ Iob1e, mint, Mich. Application girly1?, 1944, serial No. 545358.

circle 34 may be for .a machine having an eccentricity of .002 of an inch; the circle 35 corresponds to an eccentricity something less than .002 `of an-inch and the .circle 33 corresponds to an eccentricity still lower; In the form shown in Fig. 5, the gauging member 3Ia is in the form of a complete circle and instead of placing the In Fig. 8, there is a gauge block Il for gauging ,l

an opening in a work piece I8. The gauge block constitutes the support having an opening'for the reception of the outer `adjustable member 2, which receives the inner adjustable memberA 4 with its opening B through which a gauge member I9 functions to gauge the Work piece. It will readily be appreciated that warping or vshrinkage of material and errors inmanufacturing can be met and overcome by the accurate positioning of the center of the opening Z'through the means of the adjustment.

'I'he calculating device isV relatively simple insofar as its structure is concerned. It comprises a. 4base member which may be circular, as shown at 25, divided into a multiplicity of increments by cross lines 26 and 21. member is at the intersection of' the central cross lines, as at 28, and the cross lines are numbered progressively from the center by suitable numbering of the indicia 29. This base member car- The centerof this base gauging circles within eachv other as shown in Fig. 1`, the gauging circles may be .arranged about the center.

As shown in Fig. 5, there are four gauging circles 34a, 35a, 36a and a smaller one 4|. 4"Ihis arrangement eliminates the problem where l, the perimeter of the circles come near A be placed in an `initial starting position as is ries an axis member or `piritle disposed on its center. The base member may be made of any suitable material, preferably `a material having a low co-efcient of expansion.

. For cooperation withl the base member is an adjustable or gauging member 3l; This member is preferably transparent and itcanbe madeof any material suitable for the purpose, such as a plastic or glass, and it is arranged tol overlie the .base and swivel on the pintle` 3B, asis shown in Fig. 2. This base membermay be segmental or semi-circular in shape and, as shown in Figs. 1 and v2it exceeds the semi-circular shape just enough to provide for its swiveling on the pintle 30, its chordal edge beingillustrated at 32.

The gauging member 3l has suitabledegree markings advantageously'arranged around its peripheral or curved edge, as shown by the indicia 33and the degree markings may be doubly arranged in `reverse position so that the same can be easily read from either end. As shown, the degree markings cover 180. ,Inscribed upon the member 3l is one or more circles; three circles are shown in Fig. 2, as at 34, 35 and 3B. vSuitable indicia is also inscribed upon the gauging member to indicate the angular extent from a zero position which is at the center 23,--'this indicia being shown as comprising the numerals 31 and radial lines 38. I'he gauging device itself, insofar as its structure is concerned, may

be readily appreciated as'reference to Fig. 4'. The f center of the outer circle 34 is illustratedl at 40.

The calculatingdevice, as shown in Fig. `1, isl

made many times larger than themachine `to be adjusted and, therefore', minutely small increments of adjustment can be obtained. For an example, `in one device which has been made 'the size was increased `2000 times.- In this deof circles as indicated for different machines having different eccentricities. For example, the

shown in Fig. 6, with. the centers 5 and 3" lined up on the'center`v line and with the aperture E coinciding with the center 3 vof the outer member y2. The base and the gauging member of the calculating device are positioned as is shown in Fig. 1, with the'zero line on the Abase member lined up with the zero position: on4 the gauging position.v In other words, the zero'position of theindcia 33 is lined up with the zero line 21 on the base member Awhich intersects the member- 28. In this starting position the gauging member 3| maybe locatedin any one of four positions with/.the zero `indicia. `lined up either with the center lines 21 or the center lines 26.

Now, taking a specic problem, let it be assumed that the center'of the `opening B is to be located ata pointcorresponding to the intersection of the line 8 and the line 22, as indicated at 45. The gauging Vmember 3| is now rocked counterclockwise, as Fig. lis viewed, rto the position shown in Fig; 3 `where the circle'34 intersects the point 45. The degree indicia 3T shows that this intersection is at 71 on the circle 34. Therefore, this 'indicates that-the inner eccentric member 4 is to be rocked clockwise 71 and there locked in position. 'The indicia 31 thus indicates not only the direction of -movementol the eccentric member 4 but also the angle through which it is adjusted. Now, the indicia 33 shows that the' gauging member has been moved through an angle of 16. This indicates that the outer member `2 is now to be rotated through 16 andA then ylocked in position. It also indicatesthe direction of rotation. When this is donetheV center of thebearing or bushing 6 or the shaft y6a or whatever mechanical piece is associated with the mounting, is accurately positioned ata point corresponding to the desired point of adjustment 45. As above expIained,-the adjustment of the inner member 4 moves the bushing center through the arc 1; the rocking of the outer member 2 rocks the center through the arc l0. IIhe calculating device of the present in vention gives, with 'a single adjusting movement, an accurate indication of the angular movements to be given to the two adjustable members of the apparatus. Should the desired location of adjustment be in, some other position, it may be that the gauging member 3| is to be rotated clockwise instead of counter-clockwise. This indicates a clockwise adjustment of the machinery.

l. A calculating device for ascertaining adjustable movements to be made in a mechanical apparatus which has an outer rotatably adjustable member, an inner rotatably adjustable member mounted eccentrically in the outer member, the inner member having a formation such as an opening or bushing or bearing or the like eccentrically positioned therein, for the purpose of rotatably adjusting the inner and outer members to position the center of said formation in the field covered by the amount of eccentricity, comprising a base member having a center of rotation, said base member having means dividing it into increments of spacing from the center of rotaf tion laterally in two directions, a gaugingmember pivotally'mounted at the center of rotation, means forming at least part of a circle on the gauging e member, the center o'f the circle being eccentrically disposed relative to the `center of rotation, indicia on the gauging member for indicating the angle of rotation along thecircle or part thereof and indicia for showing the angle of adjustment through which the gauging member is moved about the center of rotation.

2. A calculating device for ascertaining adjustable movements to be made in a mechanical apparatus which has an outer rotatably adjustable memben'an inner rotatably adjustable member mountedeccentrically in the outer member, the inner member having a formation such as an opening' or bushing or bearingv or the like eccentrically therein, for the purpose -of rotatably adjusting ther inner and outer members to position the center of said formation in the field covered by the amount of eccentricity, the eccentricity of the inner member relative to the outer, and the eccentricity of the formation relative to the inner Y, member being equal, comprising a base member having a center of rotation, said base member having means dividing it into increments of spacing from the center of rotation laterally in two directions, a gaugingmember pivotally'mounted at the center of rotation, means forming at least part of a circle on the gauging member, the center of the circle' being eccentrically disposed relative to the center of rotation* and the periphery thereof intersecting the center of rotation, indicia on the gaugingmember for indicating the angle of rotation along the circleV o r part thereof and indicia for showing the'l angle of adjustment through which the gauging member is moved y about the center of rotation.

3. A calculating device for ascertaining adjustable movements to be made in a mechanical apparatus which has an outer rotatably adjustable member, an inner rotatably adjustable member mounted eccentrically in the outer member, the inner member having a formation'such as an opening or bushing or bearing or the like eccentrically positioned therein, for the purpose of rotatably adjusting the inner and outer members to position the center of said formation in the field covered by the amount of eccentricity, comprising a base member having a centerof rotation, said base member having means dividing it into increments of spacing from' the center of rotation laterally in two directions, a gauging member pivotally mounted .at the .center of rotation, means forming at least part of a circle on the gauging member, the center of the circle being eccentrically disposed relative to the center of rotation and the periphery thereof intersecting `the center of rotation, indicia on the gauging member for indicating the angle of rotation along the circle or part thereof, indicia for showing the angle of adjustment through transparent so that the increments of spacing on the base member are visible therethrough.

4. A calculating device for ascertaining adjustable movements to be made in a mechanical the inner member having a formation such as an opening or bushing or bearing or the like, eccentrically positioned therein, for the purpose of rotatably adjusting the inner and outer members to position the center of said formation in the'field covered by the amount of eccentricity, comprising a base member having a center of rotation, said base member having means dividing itinto increments of spacing from the center of rotation laterally in two directions, a gauging member pivotally mounted at the center of rotation, means forming at least part of a circle on the gauging member, the .center of the circle being eccentrically disposed relative to the center of rotation and the periphery thereof intersecting the center of rotation, indicia on the gauging member for indicating the angle of rotation along the circle or part thereof, indicia for showing the angle of adjustment through which the gauging member is moved about the center of rotation, the indicating member, after having been set in a zero starting position, being rotatable about the center of rotation and adapted to be so rotated until the circle or part thereof intersects a point shown by the increments of spacing to where the said .formation is to be adjusted and the indicia along the circle or part thereof at said intersection showing the required angular movement to be given to the inner adjustable memberand the indicia for showing the angular movement cf the gauging member relative to the base member showing the required" angular adjustment of the outer adjustable member.

5. A calculating device for ascertaining adjustable movement to be made in a mechanical apparatus which has an vouter rotatably adjustable member, an inner rotatably adjustable member mounted eccentrically in the outer member, the inner member having a formation such as an opening or bushing or bearing, or the like, eccent l trically positioned therein for the purpose of rotatably adjusting the inner and outer members to positionv the center of said formation in the field covered by the amount of eccentricity, comprising a base member' having a center of rotation, said base member having means divid lofl the eccentricity -of the members in the mechanical apparatus and representing the eldof adjustmentl thereof, indicia on the gauging member for indicating the angle of rotation along the circle o-r part thereof and indicia for showing the angle of adjustment through which the gauging member is movedaboutl the center of rotation.

ROSS A. NOBLE. 

